Sorbitan monopalmitate

Sorbitan monopalmitate (CAS 26266-57-9) is a non-ionic sorbitan ester surfactant derived from sorbitol and palmitic acid, commercially available under trade names including Span 40, Crill 2, and Sorgen 70. It carries no E-number designation and is classified under HS code 29400090.

In pharmaceutical tablet and capsule manufacturing, sorbitan monopalmitate functions as an emulsifier by reducing interfacial tension between oil and water phases, stabilising formulations that would otherwise separate. In personal care products such as creams and lotions, it modifies rheology by structuring the emulsion matrix, contributing to texture and consistency without acting as a primary thickener.

Sorbitan monopalmitate is supplied as solid beads and is available in grades compliant with Ph.Eur. and FCC monographs, supporting use across pharmaceutical and food-contact applications. It falls under REACH regulation and suppliers operating in the EU must provide a current Safety Data Sheet. Packaging formats typically include fibre drums and multi-layer bags.